According to the XML manual:
<< 2.1 >> TEX versus LUA
It will not come as a surprise that we can access xml files from TEX as well as
from Lua. In fact there are two methods to deal with xml in Lua. First there
are the low level xml functions in the xml namespace. On top of those functions
there is a set of functions in the lxml namespace that deals with xml in a more
TEXie way.
<< 3.7 >> manipulation
You can use Lua code to manipulate the tree and it makes no sense to duplicate
this in TEX. In the future we might provide an interface to some of this
functionality. Keep in mind that manipuating the tree might have side effects
as we maintain several indices into the tree that also needs to be updated
then.
Having read that, I was loooking for the documentation of the commands that are
available in the xml namespace. I want to manipulate a XML tree in LMTX lua.
But looking online gives me all kinds of different XML-solutions that are
proposed for lua. Which one is embedded in LMTX and available in the xml
namespace? But then I get confused because other elements like xml.first,
xml.collected are in the xml namespavce and mentioned.
So, maybe I misunderstand things and is the documentation in
<< 5.5 >> selectors and injectors
This section describes a bit special feature, one that we needed for a project
where we could not touch the original content but could add specific sections
for our own purpose. Hopefully the example demonstrates its useability.
But that part I do not understand.
What I need (in LMTX lua) to add (sub)nodes to the XML node (that I read with
xml.first()) because the data I get is broken and I need to fix it before I can
use it (and I cannot get good data) The easiest way is to add the correct data
to the XML and then use it in my code. If I cannot do that I need to write
parallel code that largely does the same as what I already have (ugh)..
G
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